using System;

public class hello
{
    public static void Main()
    {
        var n = int.Parse(Console.ReadLine().Trim());
        string[] line = Console.ReadLine().Trim().Split(' ');
        var a = Array.ConvertAll(line, int.Parse);
        var dmin = int.MaxValue;
        for (int i = 0; i < n-1; i++)
            dmin = Math.Min(dmin, a[i + 1] - a[i]);
        Console.WriteLine(dmin);
        Console.WriteLine(a[n - 1] - a[0]);
    }
}